/**
 * Copyright (C) 2008 Mathieu Carbou <mathieu.carbou@gmail.com>
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *         http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.code.xmltool.util;

import org.xml.sax.EntityResolver;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.ext.EntityResolver2;

import java.io.IOException;
import java.io.StringReader;

/**
 * @author Mathieu Carbou (mathieu.carbou@gmail.com)
 */
public final class NoEntityResolver implements EntityResolver, EntityResolver2 {

    public static final NoEntityResolver instance = new NoEntityResolver();

    private NoEntityResolver() {
    }

    public InputSource getExternalSubset(String name, String baseURI) throws SAXException, IOException {
        return new InputSource(new StringReader(""));
    }

    public InputSource resolveEntity(String name, String publicId, String baseURI, String systemId) throws SAXException, IOException {
        return new InputSource(new StringReader(""));
    }

    public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException {
        return new InputSource(new StringReader(""));
    }
}
